<template>
  <div
    class="sk-chase"
    :style="{
      width: width ? width : '50px',
      height: height ? height : '50px'
    }"
  >
    <div class="sk-chase-dot"></div>
    <div class="sk-chase-dot"></div>
    <div class="sk-chase-dot"></div>
    <div class="sk-chase-dot"></div>
    <div class="sk-chase-dot"></div>
    <div class="sk-chase-dot"></div>
  </div>
</template>

<script>
export default {
  name: 'Loading',
  props: {
    width: {
      type: String,
      default: ''
    },
    height: {
      type: String,
      default: ''
    }
  }
};
</script>

<style lang="scss" scoped>
.sk-chase {
  width: 50px;
  height: 50px;
  position: relative;
  animation: sk-chase 2.5s infinite linear both;
}
.sk-chase-dot {
  width: 100%;
  height: 100%;
  position: absolute;
  left: 0;
  top: 0;
  animation: sk-chase-dot 2.0s infinite ease-in-out both;
}
.sk-chase-dot:before {
  content: '';
  display: block;
  width: 25%;
  height: 25%;
  background:#ffffff;
  border-radius: 100%;
  animation: sk-chase-dot-before 2.0s infinite ease-in-out both;
}
.sk-chase-dot:nth-child(1) { animation-delay: -1.1s; }
.sk-chase-dot:nth-child(2) { animation-delay: -1.0s; }
.sk-chase-dot:nth-child(3) { animation-delay: -0.9s; }
.sk-chase-dot:nth-child(4) { animation-delay: -0.8s; }
.sk-chase-dot:nth-child(5) { animation-delay: -0.7s; }
.sk-chase-dot:nth-child(6) { animation-delay: -0.6s; }
.sk-chase-dot:nth-child(1):before { animation-delay: -1.1s; }
.sk-chase-dot:nth-child(2):before { animation-delay: -1.0s; }
.sk-chase-dot:nth-child(3):before { animation-delay: -0.9s; }
.sk-chase-dot:nth-child(4):before { animation-delay: -0.8s; }
.sk-chase-dot:nth-child(5):before { animation-delay: -0.7s; }
.sk-chase-dot:nth-child(6):before { animation-delay: -0.6s; }
@keyframes sk-chase {
  100% { transform: rotate(360deg);}
}
@keyframes sk-chase-dot {
  80%, 100% { transform: rotate(360deg);}
}
@keyframes sk-chase-dot-before {
  50% {
    transform: scale(0.4);
  } 100%, 0% {
    transform: scale(1.0);
  }
}
</style>
